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Begin OCR Text:
When the pU_p gfaftg to oDefate a_d if thefe __
a_f _n _t_ the a_f _S pfessgd
'out into the oveff_ow
Ilne V_a the Cofu__ in the Digfon (_, Fio. 2-5g). _he
COlU_n iS nOt _afgg gnouoh' to a__o'w a___ the fule_ __e
pU_p Can pfOdUçg fo
_pagg, go fhat, when'
'a__f
IS e_pelled, thg pigtOn ig fofçed baÇk towafdg the
Seat and SeaIS, WhiIe the out_ef çhanne_ (__, F_g.
2-59) OpenS. Whgn the pu_D ghutg off a'nd the
PfeSSUfe dfOpS, the piston ig_fofçed fofwafdg and
ClOSeS the OUf_gf Çhanng_ when the Dfeggufe hag
dfOpped tO abouf _.2 kp/ç_2 (1_ D.g._i.), the ga_e
pOSit_On aS dUf_ng thg ven'tino.
'_ho_u_d tlhe Dfeggufe
fOf SO_e feagon of othef du_f_n_ oDefafion_e_çee_
_c__,L__.,n about q.5 kDJÇ_2 (64 D.g.i.), thef_e __ay _e a Fau_t __n
the pfeSSUf_g' fegu'Jato_f, fuel_ __ne b_oçkaU_e, e'tç.,'fhe
StfOng Spf_ng _g çO_Ffegggd and the D_igton o_eng
F__g. _-_. _o___o_ _e_gy _o__ee_._o__ and feleaSeS fUeJ info fhe fetufn __ine (___,
_fig.
2_5g)_
t
FUE_ F___E_
The fUel f_ltef _g _ounted in the guçtion __ne be_
tWeen the tank and fue_ pu_D. gee fio. 2-5_. _t __g a
papef type flltff and ghou'_d be fe_D_aÇed affef
2O,OOO k_ (12,5OO ___eg).
_
ELE_____ FUEL _U__
7he eleCtfIC fUef pu_p ig _ounfed undef fhe ve-
h_Cle at the ffont end of fhe fue_ tank, gee Fj_g.
2-58. PU_p and _Ofof afe ençfoged and çannot be
dIS_antled fOf fepaifg. fue_ ç_fçuJateg jng_de the
_OtOf SO tha( the fOfof and bfugheg oDefafe _n the
FUe_.
_ V_oO4L4V_O
The pu_D hag a Ço_bined fe__ef an_ non-fe+ufn Fig. 2_58. Fuel pu_p
VaIVe Wh'_çh a_go gefveg fof ventinff
Uan_ aif
'tha_
_lßht haVe been dfawn in dufino fh_e id_Iing of the'
pU_p, See fIgS. 2-58 and 2-6O.
_ The pU_p WIll fUn on_y fof 1-2 geçondg when fhe
IgnltlOn _S SW_tçhed On. Th_g _g to Dfevent the en-
glne ffO_ be_ng flIIed With petfol by' a _eak_no Ço_d
Staft VaIVe Of _n)eCtOf. The pu_p thefeaftef o_Defa-
teS Only When the Staftgf _otof enoaoeg of w_ hen
the englne IS fUnnIng.
_
_
Fig. 2-5l. Fuel fi__e_
''_''_' 2__25
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